Enhanced privacy for priority access in wireless systems

Abstract

Disclosed are systems and techniques for wireless communications. For instance, a process may include transmitting a first radio resource control (RRC) message, the first RRC message including a first establishment cause value indicating that an apparatus does not have priority access. The process may also include determining that priority access may be used by the apparatus, transmitting a second RRC message, the second RRC message including a second establishment cause value indicating that the apparatus has priority access, and accessing a wireless network using the priority access.

What is claimed is: 
     
         1 . An apparatus for wireless communications, comprising:
 at least one memory comprising instructions; and   at least one processor coupled to the at least one memory and configured to:
 transmit a first radio resource control (RRC) message, the first RRC message including a first establishment cause value indicating that the apparatus does not have priority access; 
 determine that priority access may be used by the apparatus; 
 transmit a second RRC message, the second RRC message including a second establishment cause value indicating that the apparatus has priority access; and 
 access a wireless network using the priority access. 
   
     
     
         2 . The apparatus of  claim 1 , wherein the at least one processor is configured to determine that priority access may be used based on an indication of network congestion. 
     
     
         3 . The apparatus of  claim 2 , wherein the indication of network congestion comprises a message received from the wireless network, the message indicating that the wireless network is congested. 
     
     
         4 . The apparatus of  claim 2 , wherein the indication of network congestion comprises no response to the first RRC message. 
     
     
         5 . The apparatus of  claim 1 , wherein the determination that priority access may be used is based on user input received via a user interface. 
     
     
         6 . The apparatus of  claim 1 , wherein the at least one processor is configured to access stored priority access configuration information to determine a value for the second establishment cause value. 
     
     
         7 . The apparatus of  claim 6 , wherein the stored priority access configuration information is stored on one of a universal subscriber identity module, or the at least one memory. 
     
     
         8 . The apparatus of  claim 7 , wherein the at least one processor is further configured to:
 receive a message including priority access configuration information; and   cause the priority access configuration information to be stored in the at least one memory.   
     
     
         9 . The apparatus of  claim 1 , wherein the first RRC message and the second RRC message comprises RRC Connection Request messages. 
     
     
         10 . The apparatus of  claim 1 , wherein the first establishment cause value and the second establishment cause value are determined based on configured access class identity values. 
     
     
         11 . A method for wireless communications, comprising:
 transmitting a first radio resource control (RRC) message, the first RRC message including a first establishment cause value indicating that an apparatus does not have priority access;   determining that priority access may be used by the apparatus;   transmitting a second RRC message, the second RRC message including a second establishment cause value indicating that the apparatus has priority access; and   accessing a wireless network using the priority access.   
     
     
         12 . The method of  claim 11 , wherein the determination that priority access may be used is based on an indication of network congestion. 
     
     
         13 . The method of  claim 12 , wherein the indication of network congestion comprises a message received from the wireless network, the message indicating that the wireless network is congested. 
     
     
         14 . The method of  claim 12 , wherein the indication of network congestion comprises no response to the first RRC message. 
     
     
         15 . The method of  claim 11 , wherein the determination that priority access may be used is based on user input received via a user interface. 
     
     
         16 . The method of  claim 11 , further comprising accessing stored priority access configuration information to determine a value for the second establishment cause value. 
     
     
         17 . The method of  claim 16 , wherein the stored priority access configuration information is stored on one of a universal subscriber identity module, or at least one memory of the apparatus. 
     
     
         18 . The method of  claim 17 , further comprising:
 receiving a message including priority access configuration information; and   causing the priority access configuration information to be stored in the at least one memory.   
     
     
         19 . The method of  claim 11 , wherein the first RRC message and the second RRC message comprises RRC Connection Request messages. 
     
     
         20 . The method of  claim 11 , wherein the first establishment cause value and the second establishment cause value are determined based on configured access class identity values. 
     
     
         21 . A non-transitory computer-readable medium having stored thereon instructions that, when executed by at least one processor, cause the at least one processor to:
 transmit a first radio resource control (RRC) message, the first RRC message including a first establishment cause value indicating that an apparatus does not have priority access;   determine that priority access may be used by the apparatus;   transmit a second RRC message, the second RRC message including a second establishment cause value indicating that the apparatus has priority access; and   access a wireless network using the priority access.   
     
     
         22 . The non-transitory computer-readable medium of  claim 21 , wherein the instructions cause the at least one processor to determine that priority access may be used based on an indication of network congestion. 
     
     
         23 . The non-transitory computer-readable medium of  claim 22 , wherein the indication of network congestion comprises a message received from the wireless network, the message indicating that the wireless network is congested. 
     
     
         24 . The non-transitory computer-readable medium of  claim 22 , wherein the indication of network congestion comprises no response to the first RRC message. 
     
     
         25 . The non-transitory computer-readable medium of  claim 21 , wherein the determination that priority access may be used is based on user input received via a user interface. 
     
     
         26 . The non-transitory computer-readable medium of  claim 21 , wherein the instructions cause the at least one processor to access stored priority access configuration information to determine a value for the second establishment cause value. 
     
     
         27 . The non-transitory computer-readable medium of  claim 26 , wherein the stored priority access configuration information is stored on one of a universal subscriber identity module, or at least one memory. 
     
     
         28 . The non-transitory computer-readable medium of  claim 27 , wherein the instructions cause the at least one processor to:
 receive a message including priority access configuration information; and   cause the priority access configuration information to be stored in the at least one memory.   
     
     
         29 . The non-transitory computer-readable medium of  claim 21 , wherein the first RRC message and the second RRC message comprises RRC Connection Request messages. 
     
     
         30 . The non-transitory computer-readable medium of  claim 21 , wherein the first establishment cause value and the second establishment cause value are determined based on configured access class identity values.